RT Journal Article SR Electronic T1 Methotrexate Treatment of Rheumatoid Arthritis JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 474 OP 474 VO 56 IS 5 A1 Wilke, William S. YR 1989 UL http://www.ccjm.org/content/56/5/474.abstract AB